Saxophone



Nov. 6, 1928.

A. J. JOHNSON SAXOPHOQE Filed Jan. :s', 1925 4 R V. w w m Wm M VIN T w M J I fifred Patented Nov. 6, 192 8. i

A 1,690,862 v UNITED STATES PATENT. OFFICE-) ALFREDJ. JOHNSON, or eRANnRArIns, MICHIGAN, AssiGNoR To J. w. Yoaxa sons,

4 OFGRAND RAPIDS, MICHIGAN. a 7

SAXOPHONE.

fAppl ication filedJanuary 3,1925; Serial No. 363.

. 1 This invention relates to improvements in Saxophones and similar instruments.

The objects of the invention are to provide a tone hole structure which will notleak, in

5 which the use of an exposed solderzjoint is avoided, in whichthere isan effective bafiie to prevent the escape of saliva throughthe tone I hole tothe pad,inwhich the outer surface of thetone hole is so formed thatit has an ef- 'l0 fectively rounded and'smooth contact surface, andin whichthere is a lining and facing to the tone hole socket of non corrosive metal or non-corrosive material.

Objects pertaining to details will definitely appear from the detailed descriptionto follow. V i

I accomplish the objects of the invention by the devices, and means described inthe following specificationf The invention is defined and pointed out in the claims.

Astructure which is apreferred embodiment of my invention is illustrated in the accompanying drawing, forming apart of this application, in which:

Fig. I is a detail'view of the body or branch of a saxophone or similar wind instrument such as a flute'or clarinet, with the tone hole structurein the process of manufacture.

Fig. II'is a transverse detail sectional View taken on line 22 of Fig; 1, showing the tone hole structure in the process of manufacture.

Fig. III is a similar sectional view showing the next step of the-operation in which the wall of the body or branch is cut away by 35 circular saw or boring tool.

Fig. IV is a detail sectional View showing ;the introduction of the non-corrosive metal lining and the disposition of the spinning tool in dotted lines forexpanding and spinning "the metal outwardlyover the outer end of the tone hole socket to form the contact surface.

Fig. V is an enlarged detail sectional view showing the complete tone hole structure. I Fig. VI is a detached detail of the tubular socket for the tone hole.

Fig. VII is a detached detail view of the tubulizr lining blank flanged internally and.

, ready to introduce into the socket.

In the drawingsimilar numerals of refer-,

ence refer to similarparts throughout the several views and the sectional view is taken looking in the direction of the little arrows at the ends of the section line. v

The parts of the drawing will be identified 5 by their numerals of reference. 1 is the body or branch of a saxophone or other similar instrument. 2' is the tubular shell socket or vertical wall around the tone hole 3 is the light line of solder by which the same is united to the branch. Theinner end of this socket 1s cut on the arc of a circle to conform to the side of the branch and the outer end is square across. When the socket is soldered in place it embraces a circular, portion ofthe wall 4. This is cutaway to form the opening 5 by the usual circular cutting saw 6,see Fig. III where this step of the operation appears.

The non-corrosive metal lining 7 is tubular in form to conform to this socket, having an outwardly projecting flange 8 at its innerend conformed to the inner surface of the branch or body at that point. jects beyond the socket portion 2 in position to be acted upon by a spinning tool 10, indi- The tool 10 cated in'dotted lines in Fig. IV. spins the projecting-end of the non-corrosive metal lining 9 over into aclose engaging head portion 11 accurately conformed to the outer end of the tubular socket 2. By this means it will be noted that the inner flange 8 forms a bathe to prevent the flow of saliva to the tone hole and that the outer end of the metal,

' which is quite ductile and non-corrosive, is

spun perfectly smooth so that it will not have a cutting orabrading effect on the valve pad.

The non-corrosive ductile metal is preferable for this purpose as it can be spun very effectively in place. However, such materials as celluloid or even hard rubber can be formed in place. The solder joint is only desirable as a step in manufacture and the solder can be substantially all. cleared away in finishing, as the lining holds the parts effectively together.

I desire to claim the invention specifically and also broadly, as pointed out in the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by Letters Patent is:

1. In a saxophone or similar instrument, a tone hole structure comprising the combina tion with the body provided with a perforation at the side, of a tubular socket section secured to said body and surrounding said perforations and suitably soldered thereto, and a The outer end 9 proluv ductile. non-corrosive metal lining member llu tion at the side, of a tubular socket section s ecured to said body and surrounding sa d pertorations, and a ductile non-corrosive metal lining member with an expanded pro jecting flange Within the instrument and its outer end spun to conform to the socket section to retain the same and form a smooth contact surface for the paid, as specified.

3. In a saxophone or similar instrument, a tone hole structure comprising the combination with the body provided with a perforation at the side, of a tubular socket section secured to said body and surrounding said perforations, and a non-corrosive lining memher with an expanded projecting flange'within the instrument and its outer end spun to conform to the socket section to retain the same and form a smooth contact surface for the pad, as specified.

i. In a saxophone or similar instrument, the combination with the body of a tone hole structure formed by a tubular socket section, and a ductile non-corrosive metal lining member' with an expanded projecting flange Within the instrument and its outer end spun to conform to the socket section to retain the seine and form a smooth contact surface for the pad, as specified.

5. In a saxophone or similar instrument, the combination with the body or". a tone hole structure formed by a tubular socket section, and a ductile non-corrosive metal lining member with its outer end spun to confornito the socket section to retain the same and form a smooth contact surface for the pad, as specified.

(3. In a saxophone or similar instrument, the combination with the body, of a tone hole structure formed by a tubular socket section, and a ductile non-corrosive metal lining member, with an expanded projecting flange forming a baflle guard for the tone hole With.- in the instrument, as specified.

hand.

ALFRED J. JOHNSON.

In. witness whereof I have hereunto set my 

